Tax Lawyer, Vol. 54, No. 2 AGE DISCRIMINATION OR AGE JUSTIFICATION? 299 299 AGE DISCRIMINATION OR AGE JUSTIFICATION? THE CASE OF THE SHRINKING FUTURE INTEREST CREDITS UNDER CASH BALANCE PLANS Alvin D. Lurie* I. INTRODUCTION TO A WORLD NOT BLACK OR WHITE Eaton v. Onan Corp.,1 a pension case decided last Fall by the federal district court in Indiana, could not fail to please even the most ardent apologist for the cash balance plan design. It is not an exaggeration to state that it saved such plans...